Field Excursion of the NOAA Panel on Abrupt Climate Change
January 2002
Mount Cook is seen in the center, with Hooker valley
on left, Tasman valley on right
Mount Cook seen from helicopter
Franz Josef glacier flowing downhill, to meet
warmer temperatures where ice can melt
Our helicopters on Geikie snowfield,
accumulation zone of the Franz Josef Glacier
Looking for organic material for carbon dating in the
terminus of Franz Josef glacier (Chris Hendy, Richard
Alley,
Tom Lowell; standing: Jeff Severinghaus, Mark Cane)
Lake Pukaki, remnant of the last great
Ice Age that ended ~10,000 years ago
Small lakes (tarns) have formed on the lateral moraine
terrace
above Lake Pukaki. This formed during the Last Glacial
Maximum
ca. 20,000 years ago, when a huge glacier filled the
valley.